Mercado Bitcoin Suspends Withdrawals After $40M in Suspcious Transfers

TL;DR Brazil-based Mercado Bitcoin suspended deposits and withdrawals after suspicious transfers affected wallets across at least 10 blockchain networks. Security researchers estimate that more than $40 million in crypto assets moved to new addresses. The exchange says it contained the incident, with no customer harm or data breach reported. Tether froze $4.5 million in USDT linked to the incident, while the attacker’s identity and access method remain unknown. Mercado Bitcoin Halts Transactions Following Security Incident Brazilian cryptocurrency exchange Mercado Bitcoin has suspended deposits and withdrawals after unusual activity drained wallets associated with the platform across multiple blockchain networks.